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Accumulated Other Comprehensive Income (Loss) | 12 Months Ended
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Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) | 10. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
The components of accumulated other comprehensive income are as follows:
millions of Canadian dollars | Unrealized (loss) gain on translation of self-sustaining foreign operations | Net change in net investment hedges | (Losses) gains on derivatives recognized as cash flow hedges | Net change on available-for-sale investments | Net change in unrecognized pension and post-retirement benefit costs | Total AOCI
Balance, January 1, 2018 | $ | 30 | $ | 48 | $ | (3) | $ | 3 | $ | (243) | $ | (165)
Other comprehensive income (loss) before reclassifications |  | 624 |  | (122) |  | 2 |  | - |  | - |  | 504
Amounts reclassified from accumulated other comprehensive income loss |  | - |  | - |  | (6) |  | (4) |  | 9 |  | (1)
Net current period other comprehensive income (loss) |  | 624 |  | (122) |  | (4) |  | (4) |  | 9 |  | 503
Balance, December 31, 2018 | $ | 654 | $ | (74) | $ | (7) | $ | (1) | $ | (234) | $ | 338
For the year ended December 31, 2017
Balance, January 1, 2017 (1) | $ | 489 | $ | (49) | $ | (21) | $ | (1) | $ | (283) | $ | 135
Other comprehensive income (loss) before reclassifications |  | (459) |  | 97 |  | 10 |  | 5 |  | - |  | (347)
Amounts reclassified from accumulated other comprehensive income loss (gain) (2) |  | - |  | - |  | 8 |  | (1) |  | 40 |  | 47
Net current period other comprehensive income (loss) |  | (459) |  | 97 |  | 18 |  | 4 |  | 40 |  | (300)
Balance, December 31, 2017 | $ | 30 | $ | 48 | $ | (3) | $ | 3 | $ | (243) | $ | (165)
(1) The January 1, 2017 balance of AOCI and Regulatory Assets includes a prior period reclassification of $44 million in unrecognized pension and post-retirement benefit costs and $18 million in deferred taxes ($26 million, net of tax) to be consistent with current year presentation.
(2) Certain net changes in unrecognized pension and post-retirement benefit costs for Emera Maine of $4 million were previously presented as a change in AOCI and are now presented as a change in Regulatory Assets for the year ended December 31, 2017 to be consistent with current year presentation.
The reclassifications out of accumulated other comprehensive income (loss) are as follows:
For the |  | Year ended December 31
millions of Canadian dollars |  |  | 2018 |  | 2017
Affected line item in the Consolidated Financial Statements |  |  |  |
Losses (gain) on derivatives recognized as cash flow hedges |  |  |  |
Power and gas swaps | Non-regulated fuel for generation and purchased power | $ | (1) | $ | (3)
Foreign exchange forwards | Operating revenue - regulated |  | (5) |  | 10
Total before tax |  |  | (6) |  | 7
| Income tax recovery (expense) |  | - |  | 1
Total net of tax |  | $ | (6) | $ | 8
Net change in available-for-sale investments |  |  |  |
| Other income (expenses), net | $ | - | $ | (1)
| Retained earnings (1) |  | (4) |  | -
Total net of tax |  | $ | (4) | $ | (1)
Net change in unrecognized pension and post-retirement benefit costs |  |  |  |
Actuarial losses (gains) | Operating, maintenance and general (“OM&G”) | $ | 25 | $ | 33
Past service costs (gains) | OM&G |  | (1) |  | (8)
Amounts reclassified into obligations | Pension and post-retirement benefits |  | (17) |  | 11
Total before tax |  |  | 7 |  | 36
| Income tax recovery (expense) |  | 2 |  | 4
Total net of tax |  | $ | 9 | $ | 40
Total reclassifications out of AOCI, net of tax, for the period | $ | (1) | $ | 47
(1) Related to the adoption of ASU 2016-01, Financial Instruments – Recognition and Measurement of Financial Assets and Financial Liabilities. Refer to note 2 for additional detail.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
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